This ComfyUI workflow, titled 'LED Billboard Message,' is designed to seamlessly overlay text onto a blank billboard image and create a smooth zoom-in video that reveals your message. The workflow utilizes several nodes, including LoadImage for importing the billboard base, and GeminiImage2Node for integrating text onto the image. KlingStartEndFrameNode is used to define the start and end frames of the zoom-in effect, ensuring a smooth transition. SaveImage and SaveVideo nodes are employed to export the final image and video outputs. The custom nodes from comfyui_essentials facilitate advanced operations like RegexReplace for text manipulation, enhancing the workflow's versatility.
API
Use this workflow from code
Every Comfy workflow is a JSON graph. The payload below is this workflow, exactly as ComfyUI runs it — fetch it from the URL, keep it in version control, or load it in ComfyUI and run it node by node.
GET https://comfy.org/workflows/download/29633c85694f.jsonFetching workflow JSON…
Run it from Python or TypeScript with the Comfy SDK. The same code targets Comfy Cloud or a ComfyUI you host yourself — only the base URL changes.
# Install (beta)
pip install comfy-sdk # Python
npm i @comfyorg/sdk # TypeScript
# Run "LED Billboard Message" (Python)
from comfy_sdk import Comfy
client = Comfy(api_key="comfyui-...")
# This workflow, exported in API format (see note below)
wf = client.workflows.from_file("templates-led_billboard_api.json")
asset = client.assets.from_file("input.png")
wf.set_input("10", "image", asset) # LoadImage
job = client.run(wf)
for output in job.get_outputs("19"): # SaveImage
output.to_file(output.name)The SDK takes a workflow in API format: open this workflow in ComfyUI and use File → Export Workflow (API). API access requires a Comfy Cloud plan with an API key. SDK docs · Get an API key
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